JP4484711B2 - 高珪素方向性電磁鋼板の製造方法 - Google Patents
高珪素方向性電磁鋼板の製造方法 Download PDFInfo
- Publication number
- JP4484711B2 JP4484711B2 JP2004551260A JP2004551260A JP4484711B2 JP 4484711 B2 JP4484711 B2 JP 4484711B2 JP 2004551260 A JP2004551260 A JP 2004551260A JP 2004551260 A JP2004551260 A JP 2004551260A JP 4484711 B2 JP4484711 B2 JP 4484711B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- powder
- annealing
- electrical steel
- oriented electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/02—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
- C23C10/20—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
- C23C10/44—Siliconising
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
- C23C10/44—Siliconising
- C23C10/46—Siliconising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Description
上記脱炭焼鈍鋼板は、重量%で、C:0.045〜0.062%、Si:2.9〜3.3%、Mn:0.08〜0.16%、Al:0.022〜0.032%、及びN:0.006〜0.008%、残りの鉄及び不可避な不純物からなり、上記脱炭焼鈍鋼板の表面に、MgO粉末100重量部;及び、上記MgO粉末基準で、その粒度が-325meshで、Si:25〜70重量%、残部Fe及び不可避な不純物からなるFe-Si系化合物焼成粉末0.5〜120重量部からなる浸珪拡散用粉末塗布剤をスラリー状態で塗布した後乾燥させ、該乾燥された脱炭焼鈍鋼板を窒素と水素の混合ガス雰囲気下において1200℃まで加熱し、続いて100%水素雰囲気において1200℃で20時間以上均熱した後冷却することを特徴とする高珪素方向性電磁鋼板の製造方法に関するものである。
方向性電磁鋼板の製造工程は、メーカー毎に多少工程に違いはあるものの、通常として製鋼における成分調整、連鋳スラブ製造、連鋳スラブの再加熱、再加熱された連鋳スラブの熱間圧延、得られた熱延鋼板を焼鈍して、得られた焼鈍鋼板を冷間圧延により厚さ調整、得られた冷延鋼板を脱炭焼鈍して、この鋼板を2次再結晶のために高温焼鈍し、絶縁膜をこの鋼板上に最終コーティングする工程から成る。こうした製造工程は量産体制を基本とする工程であり、量産体制に重要な因子は冷間圧延法への生産体制の確立である。しかし、上述したように、電磁鋼板内珪素含量が増加するほど鉄損、磁歪、保磁力、磁気異方性が減少し最大透磁率が増加するので優れた磁気的特性をあらわすが、珪素含量の増加に応じて機械的特性である延伸率が急激に減少するので量産可能な冷間圧延法により電磁鋼板の製造が可能な素材Si含量は3.3%程と知られている。
Si金属を通常950℃以上の高温の水素または窒素雰囲気下においてFe金属と接触させると、Si原子はFe金属素材内部に拡散しFe原子は初期Si金属部に拡散する相互拡散反応を起こし、両濃度を均一にする性質がある。したがって、Si金属粉末を電磁鋼板の素材部に接触させ高温で焼鈍すると、Si粉末の濃度が方向性電磁鋼板表面のSi濃度である3%レベルより遥かに高いことから、金属Siと素材Feの相互移動により相互拡散反応が進められていることがわかる。
先ず、本発明においては、Si成分の拡散速度をより遅くするためにSi金属単独粉末を浸珪拡散用塗布剤に使用せず、Si金属がFe金属と結合した化合物形態であるFeSi2、FeSi、Fe5Si3またはFe3Si状態のFe-Si系化合物形態に形成して浸珪拡散用塗布剤の基本成分に用いる。
(関係式1)
Y-0.25≦塗布量≦Y+0.25
(関係式2)
Y(g/m2)=28(x1-x2)/(A-14.4)B+0.8
ここで、AはFe-Si系粉末中Si量(%)、Bは焼鈍分離剤組成物中Fe-Si系粉末の配合比、x1は素材の目標Si量(%)、そしてx2は素材の初期Si量(%)である。
(実施例1)
(実施例2)
ガス2:1100℃以後から終了までの焼鈍ガス雰囲気をN2/(N2+H2)の比(%)で表示したもの。
Claims (4)
- Siを2.9〜3.3重量%含有する方向性電磁鋼板用鋼スラブを再加熱し熱間圧延して熱延鋼板を形成し、該熱延鋼板を焼鈍して得た焼鈍鋼板を冷間圧延してその厚さを調整し、得られた冷延鋼板を脱炭焼鈍して、得られた脱炭焼鈍鋼板を2次再結晶させるために仕上げ焼鈍する工程から成る方向性電磁鋼板の製造工程において、さらに、
上記脱炭焼鈍鋼板は、重量%で、C:0.045〜0.062%、Si:2.9〜3.3%、Mn:0.08〜0.16%、Al:0.022〜0.032%、及びN:0.006〜0.008%、残りの鉄及び不可避な不純物からなり、上記脱炭焼鈍鋼板の表面に、MgO粉末100重量部;及び、上記MgO粉末基準で、その粒度が-325meshで、Si:25〜70重量%、残部Fe及び不可避な不純物からなるFe-Si系化合物焼成粉末0.5〜120重量部からなる浸珪粉末塗布剤をスラリー状態で塗布後乾燥させ、該乾燥された脱炭焼鈍鋼板を窒素と水素の混合ガス雰囲気下において1200℃まで加熱し、続いて100%水素雰囲気において1200℃で20時間以上均熱した後冷却することを特徴とする高珪素方向性電磁鋼板の製造方法。 - 上記Fe-Si系化合物焼成粉末はFeSi2、FeSi、Fe5Si3またはFe3Siを含んで組成され、上記Fe-Si系化合物焼成粉末の重量に対してFeSi2+FeSi焼成粉末を90重量%以上で含むことを特徴とする請求項1に記載の高珪素方向性電磁鋼板の製造方法。
- 上記粉末塗布剤のスラリーが塗布された脱炭焼鈍鋼板を200〜700℃で乾燥させることを特徴とする請求項1に記載の高珪素方向性電磁鋼板の製造方法。
- 上記乾燥された脱炭焼鈍鋼板を、昇温開始から1100℃までの昇温区間中には100%窒素ガス雰囲気において加熱して浸珪素量を0.25%以下に制御し、上記2次再結晶の完了した1100℃以後には雰囲気ガスを10%以下の窒素を含有する水素雰囲気として加熱することを特徴とする請求項1に記載の高珪素方向性電磁鋼板の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020069648A KR100900662B1 (ko) | 2002-11-11 | 2002-11-11 | 침규확산용 분말도포제 및 이를 이용한 고규소 방향성전기강판 제조방법 |
KR1020020074327A KR100946069B1 (ko) | 2002-11-27 | 2002-11-27 | 자성이 우수한 고규소 방향성 전기강판 제조방법 |
PCT/KR2003/002413 WO2004044252A1 (en) | 2002-11-11 | 2003-11-11 | Method for manufacturing high silicon grain-oriented electrical steel sheet with superior core loss property |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2006501371A JP2006501371A (ja) | 2006-01-12 |
JP2006501371A5 JP2006501371A5 (ja) | 2007-10-11 |
JP4484711B2 true JP4484711B2 (ja) | 2010-06-16 |
Family
ID=32314152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004551260A Expired - Lifetime JP4484711B2 (ja) | 2002-11-11 | 2003-11-11 | 高珪素方向性電磁鋼板の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7282102B2 (ja) |
EP (1) | EP1570094B1 (ja) |
JP (1) | JP4484711B2 (ja) |
DE (1) | DE60320448T2 (ja) |
WO (1) | WO2004044252A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7645543B2 (en) * | 2002-10-15 | 2010-01-12 | Polyplus Battery Company | Active metal/aqueous electrochemical cells and systems |
DE102005004037B3 (de) * | 2005-01-27 | 2006-06-14 | Thyssenkrupp Steel Ag | Verfahren zum Herstellen von magnetischem Band oder Tafeln |
KR100779365B1 (ko) * | 2006-03-27 | 2007-11-23 | 홍순진 | 절전형 외부 전원용 아답타 |
JP5262436B2 (ja) * | 2008-08-27 | 2013-08-14 | Jfeスチール株式会社 | 磁気測定方法および装置 |
CN102735712B (zh) * | 2012-06-15 | 2014-08-27 | 电子科技大学 | 一种基于微井的气体传感器阵列及其制作方法 |
KR101480498B1 (ko) * | 2012-12-28 | 2015-01-08 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
CN110520552B (zh) * | 2017-04-27 | 2021-06-29 | 杰富意钢铁株式会社 | 合金化热浸镀锌钢板的制造方法和连续热浸镀锌装置 |
DE102018200387A1 (de) * | 2018-01-11 | 2019-07-11 | Robert Bosch Gmbh | Elektroblechpaket und Verfahren zu seiner Herstellung |
CN110317938B (zh) * | 2018-03-29 | 2021-02-19 | 宝山钢铁股份有限公司 | 一种高硅晶粒取向电工钢板的制造方法 |
CN115029609B (zh) * | 2022-06-24 | 2023-06-16 | 张家港中美超薄带科技有限公司 | 一种生产高牌号无取向硅钢的方法 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2157902A (en) * | 1938-01-04 | 1939-05-09 | Globe Steel Tubes Co | Impregnation of metals with silicon |
DE1237154B (de) * | 1961-11-29 | 1967-03-23 | Licentia Gmbh | Verfahren zur Herstellung von warm- und kaltgewalzten Fe-Si-Elektroblechen |
US3423253A (en) | 1968-02-23 | 1969-01-21 | Allegheny Ludlum Steel | Method of increasing the silicon content of wrought grain oriented silicon steel |
US4073668A (en) | 1976-09-15 | 1978-02-14 | Bethlehem Steel Corporation | Method of producing silicon steel strip |
JPS6032705B2 (ja) | 1979-06-23 | 1985-07-30 | 昇 津屋 | 極めて保磁力の低い(100)面内無方向性高珪素鋼薄帯とその製造方法 |
JPS6152358A (ja) * | 1984-08-17 | 1986-03-15 | Nippon Steel Corp | 耐高温腐食性および耐水蒸気酸化性を向上させた浸けい処理鋼管 |
KR910000010B1 (ko) | 1985-06-14 | 1991-01-19 | 닛뽄 고오깐 가부시끼가이샤 | 연자기특성이 우수한 규소철판의 제조방법 |
JPH0663031B2 (ja) | 1985-10-22 | 1994-08-17 | 新日本製鐵株式会社 | 熱間圧延での耳割れが少なく磁気特性の優れた一方向性電磁鋼板の製造方法 |
JPS62227078A (ja) | 1986-03-28 | 1987-10-06 | Nippon Kokan Kk <Nkk> | 連続ラインにおける高珪素鋼帯の製造方法 |
JPS6326329A (ja) * | 1986-07-18 | 1988-02-03 | Nippon Kokan Kk <Nkk> | 化学気相蒸着処理方法 |
JPS63246125A (ja) | 1987-04-02 | 1988-10-13 | 松下電器産業株式会社 | 電気掃除機 |
US4904500A (en) | 1987-06-08 | 1990-02-27 | Exxon Research And Engineering Company | Diffusion of elements into steel by catalyzed oxide reduction |
KR920010227B1 (ko) * | 1989-12-28 | 1992-11-21 | 포항종합제철 주식회사 | 고자속밀도 방향성 전기강판의 소둔분리도포제 |
JPH0598398A (ja) * | 1991-10-07 | 1993-04-20 | Kawasaki Steel Corp | 高けい素方向性けい素鋼板及びその製造方法 |
JPH05171281A (ja) | 1991-12-17 | 1993-07-09 | Sumitomo Metal Ind Ltd | 高珪素鋼板の製造方法 |
KR950001433B1 (ko) | 1992-04-30 | 1995-02-24 | 삼성전관주식회사 | D플립플롭 회로 |
JP2659655B2 (ja) * | 1992-09-04 | 1997-09-30 | 新日本製鐵株式会社 | 磁気特性の優れた厚い板厚の方向性電磁鋼板 |
KR960006026B1 (ko) * | 1993-11-09 | 1996-05-08 | 포항종합제철주식회사 | 우수한 자기특성을 갖는 방향성 전기강판의 제조방법 |
JP2959400B2 (ja) * | 1994-06-20 | 1999-10-06 | 日本鋼管株式会社 | 高珪素鋼帯の連続製造方法 |
KR100256342B1 (ko) * | 1995-12-21 | 2000-05-15 | 이구택 | 자성 및 탈탄성이 우수한 방향성전기강판의 제조방법 |
WO1999046417A1 (fr) * | 1998-03-12 | 1999-09-16 | Nkk Corporation | Tole d'acier au silicium et son procede de fabrication |
US5993568A (en) * | 1998-03-25 | 1999-11-30 | Nkk Corporation | Soft magnetic alloy sheet having low residual magnetic flux density |
JPH11315366A (ja) * | 1998-05-07 | 1999-11-16 | Nkk Corp | 傾斜磁性材料の製造方法 |
JP3707268B2 (ja) * | 1998-10-28 | 2005-10-19 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
-
2003
- 2003-11-11 US US10/519,521 patent/US7282102B2/en active Active
- 2003-11-11 WO PCT/KR2003/002413 patent/WO2004044252A1/en active Application Filing
- 2003-11-11 JP JP2004551260A patent/JP4484711B2/ja not_active Expired - Lifetime
- 2003-11-11 DE DE60320448T patent/DE60320448T2/de not_active Expired - Lifetime
- 2003-11-11 EP EP03811152A patent/EP1570094B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60320448D1 (de) | 2008-05-29 |
US7282102B2 (en) | 2007-10-16 |
US20050247374A1 (en) | 2005-11-10 |
DE60320448T2 (de) | 2009-05-07 |
EP1570094A4 (en) | 2006-10-11 |
JP2006501371A (ja) | 2006-01-12 |
WO2004044252A1 (en) | 2004-05-27 |
EP1570094B1 (en) | 2008-04-16 |
EP1570094A1 (en) | 2005-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100900662B1 (ko) | 침규확산용 분말도포제 및 이를 이용한 고규소 방향성전기강판 제조방법 | |
JP6463458B2 (ja) | 方向性電磁鋼板用予備コーティング剤組成物、これを含む方向性電磁鋼板およびその製造方法 | |
KR100967049B1 (ko) | 고규소 강판 제조방법 | |
JP4484711B2 (ja) | 高珪素方向性電磁鋼板の製造方法 | |
JP4484710B2 (ja) | 浸珪拡散被覆組成物及びこれを利用した高珪素電磁鋼板の製造方法 | |
JP2006501371A5 (ja) | 高珪素方向性電磁鋼板の製造方法 | |
JP2006503189A5 (ja) | 浸珪拡散被覆組成物及びこれを利用した高珪素電磁鋼板の製造方法 | |
WO2017111432A1 (ko) | 방향성 전기강판 및 이의 제조방법 | |
KR100957930B1 (ko) | 자기특성이 우수한 고규소 무방향성 전기강판 제조방법 | |
KR100900661B1 (ko) | 침규확산 피복조성물 및 이를 이용한 고규소 전기강판제조방법 | |
KR100711470B1 (ko) | 고주파 철손 특성이 우수한 고규소 방향성 전기강판제조방법 | |
KR100946069B1 (ko) | 자성이 우수한 고규소 방향성 전기강판 제조방법 | |
KR100900660B1 (ko) | 분말도포성 및 표면특성이 우수한 침규확산용 피복제조성물 | |
KR100480001B1 (ko) | 타발성이 우수한 방향성전기강판의 제조방법 | |
KR101060913B1 (ko) | 철손특성이 우수한 고규소 방향성 전기강판의 제조방법 | |
KR100905652B1 (ko) | 침규확산 피복조성물 및 이를 이용한 고규소 전기강판제조방법 | |
KR20190077773A (ko) | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 그의 제조방법 | |
KR100479994B1 (ko) | 타발특성이 우수한 저온재가열 방향성전기강판의 제조방법 | |
KR100946070B1 (ko) | 고규소 전기강판 제조방법 | |
KR970007031B1 (ko) | 안정화된 자기적 특성을 갖는 방향성 전기강판의 제조방법 | |
KR101059216B1 (ko) | 그라스피막특성이 우수한 방향성 전기강판 제조방법 | |
JP2022513169A (ja) | 方向性電磁鋼板およびその製造方法 | |
JPS62133021A (ja) | グラス皮膜の密着性がよくかつ鉄損の低い方向性電磁鋼板およびその製造法 | |
JP2001200317A (ja) | 良好な被膜を有する低鉄損方向性電磁鋼板の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070517 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070522 |
|
A524 | Written submission of copy of amendment under article 19 pct |
Free format text: JAPANESE INTERMEDIATE CODE: A524 Effective date: 20070822 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090331 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090622 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100105 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100125 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100223 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100323 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130402 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140402 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |